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Who has GM Electrical Service manual?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Grim-Reaper, Apr 22, 2003.

  1. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Look up something for me. My High blower fan wasn't working. Finnaly traced it back to a loose electrical connection on then distribution block on the fire wall. Some stuff to run a trailer including brakes was added to my 88 Burb. They didn't get that left nut tight so it had an intermitant connection. One of those wires goes to the blower. There is a second wire that runs down the fire wall and goes into a harness. Look up and see where that one goes to. I'm beginning to bet the transmission is tied into that.
    Thanks
     
  2. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    AC for RPO C60
    Trailer wiring RPO UY7
    Camper Equipment RPO UY1
    Aux Cooling RPO L19 and C60
    2 go to the bulkhead connector
    1 to the starter
     
  3. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Well at least it wasn't something like the ECU.
    Thanks.
    You think the AUX cooling is the rear air or the electric radiator fan?
     
  4. K5 NUTT

    K5 NUTT 1/2 ton status

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    I own Helm manuals from 1973 thru 1999....C_K_R_V. I also have the electrical diagnostic manulas from 87 to 91...

    Most if not all R-V big blocks from 87 thru 91 recieved the cool helper fan..

    DW /forums/images/graemlins/usaflag.gif
     

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